From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 63820C4361B for ; Thu, 17 Dec 2020 22:54:30 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 8AE0923A51 for ; Thu, 17 Dec 2020 22:54:29 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8AE0923A51 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:45346 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kq2AG-0008DW-Bb for qemu-devel@archiver.kernel.org; Thu, 17 Dec 2020 17:54:28 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:59676) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kq29D-0007ls-8O for qemu-devel@nongnu.org; Thu, 17 Dec 2020 17:53:23 -0500 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:33839) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kq29A-0006nW-II for qemu-devel@nongnu.org; Thu, 17 Dec 2020 17:53:22 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1608245598; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=lyMPtD00gxGLJYOZ60KuMOiw6aW3NS7PYUpRJJLkqJI=; b=VLcUFOxfTOGB+uJBywIjKEVsSH2WjPoMUv9IwoU/Ix1+1Flz9PMQaN3q9wrbxAdLM98DLS 2ZTnzBrdMj+ZKOqVDqKBu7LpykswdILdm2b+5sxyd4EnJ8TDkx1C/lBTe4j75O0WqKICPt t4svg1ylGMNEwlgvbj/x46wV/UA9cnU= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-232-3vVQd5gqNVeS4CZiLbsN0g-1; Thu, 17 Dec 2020 17:53:16 -0500 X-MC-Unique: 3vVQd5gqNVeS4CZiLbsN0g-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 9DD6B803627; Thu, 17 Dec 2020 22:53:15 +0000 (UTC) Received: from localhost (ovpn-115-226.rdu2.redhat.com [10.10.115.226]) by smtp.corp.redhat.com (Postfix) with ESMTP id 2B93960BE5; Thu, 17 Dec 2020 22:53:15 +0000 (UTC) Date: Thu, 17 Dec 2020 17:53:13 -0500 From: Eduardo Habkost To: Claudio Fontana Subject: Re: [PULL 07/17] i386: move hyperv_vendor_id initialization to x86_cpu_realizefn() Message-ID: <20201217225313.GO3140057@habkost.net> References: <20201217184620.3945917-1-ehabkost@redhat.com> <20201217184620.3945917-8-ehabkost@redhat.com> MIME-Version: 1.0 In-Reply-To: X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=ehabkost@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Received-SPF: pass client-ip=63.128.21.124; envelope-from=ehabkost@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , qemu-devel@nongnu.org, Paolo Bonzini , Vitaly Kuznetsov , Philippe =?utf-8?Q?Mathieu-Daud=C3=A9?= , Richard Henderson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Thu, Dec 17, 2020 at 11:33:57PM +0100, Claudio Fontana wrote: > Hello all, > > On 12/17/20 7:46 PM, Eduardo Habkost wrote: > > From: Vitaly Kuznetsov > > > > As a preparation to expanding Hyper-V CPU features early, move > > hyperv_vendor_id initialization to x86_cpu_realizefn(). Introduce > > x86_cpu_hyperv_realize() to not not pollute x86_cpu_realizefn() > > itself. > > this seems to fit very well the ongoing work on separating accelerator specific realize functions; > > related to the previous discussions about the class hierarchies, > do you think that we should have a separate class in target/i386/kvm/ for a hyperv variant of the kvm-cpu.c? > > Should it be a separate class or a subclass of "kvm-accel-x86_64-cpu" ? I don't see how a separate QOM class for Hyper-V would be helpful here. What would be the problem you are trying to solve in this case? Note that the Hyper-V features here are just a set of configurable VCPU features that appear on CPUID. This is not a different kind of hypervisor and/or a different kind of accelerator. -- Eduardo